Patents by Inventor Wypke Wypkema

Wypke Wypkema has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Explosives
    Patent number: 5972137
    Abstract: The invention provides a method of sensitizing a base emulsion of the water-in-oil type, and the invention provides also a sensitized emulsion explosive comprising an emulsion of the water-in-oil type when produced by the method. The method comprises dispersing, in the base emulsion, a sensitizing solution having a solvent which comprises at most 50% by mass water, the balance of the solvent being organic, and a solute which is a chemical sensitizing agent.
    Type: Grant
    Filed: April 4, 1996
    Date of Patent: October 26, 1999
    Assignee: Aeci Explosives Limited
    Inventors: Wypke Wypkema, Keith Anthony Jordon